Probably not, because cubicles and open-floor plans are really about saving money, not about providing workers with the best environment. I interviewed at Fog

Probably not, because cubicles and open-floor plans are really about saving money, not about providing workers with the best environment. I interviewed at Fog Creek once and probably the coolest thing about the company is every developer gets a private office. Notably, these offices (as best as I can remember) are not particularly big. They may not be much bigger than a cubicle. The main distinction is they have glass walls extending all the way to the ceiling together with a door that closes. Do they take up extra space compared to normal cubicles? Probably, but not significantly more space--certainly not nearly as much space as traditional "this is 5x as much space as I actually need" offices, with unused couches sitting around just to fill the room. But this sort of construction is expensive, so it's almost never done.